Patent · US Expired

Apparatus for moving film cassettes

US4394771A · kind A · utility

5Cited by
3References
5Claims
0Family size

Inventor

Key dates

Filing dateApr 1, 1981
Grant dateJul 19, 1983
Priority date—
Expiry dateApr 1, 2001

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03B42/021
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A compact apparatus for moving a set of X-ray films or film cassettes past a picture-taking station. The apparatus comprises a plurality of holders impervious to X-rays onto each of which are mounted two films in back-to-back relation. The holders are moved in a closed loop past a picture-taking station where they present one of their two films for a first picture. After exposure, the holders are moved through the loop a second time during which they are rotated through 180.degree. so as to present the other films they carry at the station for a second picture.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.